The F major eleventh chord (abbreviated "Fmaj11 chord") is a six-note chord consisting of the notes F, A, C, E, G, and B. The chord is formed by adding an eleventh to a F major ninth chord.

In practice, the fifth (C) is often omitted from the Fmaj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.

Name
F major eleventh chord
Notes
F A C E G B
Intervals
1 3 5 7 9 11
Chord symbol
Fmaj11
Alternative symbols
F11 Fma11 FMA11 FM11
Type
Hexad (six-note chord)

Fmaj11 chord on piano

Fmaj11 chord on guitar

Fmaj11 chord on ukulele

Fmaj11 chord on the staff